Epson S1D13504 manual Bit-Per-Pixel Mode

Epson Research and Development	Page 123
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2 Bit-Per-Pixel Mode

Green Look-Up Table
	Bank 0
0
1		00
2
3
	Bank 1
4
5		01
6
		Bank
7
	Bank 2	Select
8		Logic
9		10
A
B
	Bank 3
C
D		11
E
F

Bank Select bits [1:0]

REG[27h] bits [1:0]

2-bit pixel data

Selected Bank

00	Entry	4-bit display data output
01	Select
10	Logic
11

Note: the above depiction is intended to show the display data output path only. The CPU R/W access to the individual Look-Up Tables is not affected by the various “banking” configurations.

Figure 12-2: 2 Bit-Per-Pixel – 4-Level Gray-Shade Mode Look-Up Table Architecture

4 Bit-Per-Pixel Mode

Green Look-Up Table
0	0000
1	0001
2	0010
3	0011
4	0100
5	0101	Entry
6	0110		4-bit display data output
7	0111	Select
8	1000
		Logic
9	1001

A 1010

B 1011

C 1100

D 1101

E 1110

F 1111

4-bit pixel data

Figure 12-3: 4 Bit-Per-Pixel – 16-Level Gray-Shade Mode Look-Up Table Architecture

Hardware Functional Specification	S1D13504
Issue Date: 01/01/30	X19A-A-002-18